Unit 4 Flashcards Preview

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Flashcards in Unit 4 Deck (12):
1

What does KMT stand for?

Kinetic molecular theory

2

What does kinetic refer to?

Motion

3

What ones molecular refer to?

Molecules

4

Describe gases in 3 points

1) molecules are far apart
2) molecules have a lot of energy
3) there are no attractive forces between molecules

5

What does a barometer measure?

Atmospheric pressure

6

What does atmospheric pressure result from?

The collisions of air molecules with objects

7

What are the only two elements that are liquid at room temp?

Bromine and mercury

8

Define IMF’s

Intermolecular forces
- attractive forces between separate molecules

9

Define dipole

Separation of charges

10

What is viscosity

Resistance to flow

11

When will liquids evaporate?

When the molecules on the surface gain enough kinetic energy

12

What’s the solid to liquid equilibrium?

Melting point = freezing point